HOPE rear hub Pro 5 DH | Classic 6-hole 12x148 mm Boost thru axle freehub SRAM XD | silver
The Hope Pro 5 DH rear hub from the English cult manufacturer is the logical further development of the popular classic, the Hope Pro 4. This rear hub was designed exclusively for use with single speed kits that have a SRAM XD freehub. This allowed the hub flanges to be widened and evenly distributed. This results in a wider spoke tension angle which, in combination with a symmetrical rim, makes the wheel as stable as possible. At the same time, you no longer have to worry about a defective rear derailleur if it gets stuck on a rock on the next descent in the bike park.
The development of Hope's latest generation of hubs is the result of 30 years of experience in the design and manufacture of high-quality drive elements, with the aim of improving proven technology to meet the demands of current and future bicycle technology.
The first thing that catches the eye is the new profile of the hub shell. First of all, the Pro 5 differs visually from its predecessor model. The background to this is the use of larger bearings in conjunction with a more load-appropriate arrangement, as well as the parallel tapered axle design. This has made it possible to increase the stiffness of the hub without adding weight, which noticeably increases the load capacity. The highlight of the Hope 5 is a new 6-pawl freehub system in offset design, which provides a total of 108 engagement points. It is well known that the British don't have the best sunny weather, so the new hubs were put through their paces under the most adverse conditions. If a component does reach the wear limit, the Pro 5 can be completely dismantled and repaired using normal tools. In typical Hope design, the hubs are milled from a solid block of 2014 T6 aluminium and anodized in the usual colors.
6-pawl freehub system in offset design
The 6-pawl freehub system in offset design is characterized by the fact that three of the six pawls are always engaged when riding in order to center the freehub in the pawl and thus distribute the load evenly. In addition, the freehub toothing has been increased from 44 teeth (Pro 4) to 54 teeth, resulting in a total of 108 engagement points. In addition, material has been removed from the center of the pawl springs, which reduces the spring force and thus reduces air resistance. Hope has thus achieved the right balance between acceleration behavior and durability with the Pro 5. An E-bike specific hub version is also available, which is equipped with a freehub system that is designed for the increased requirements and forces that occur on modern E-bikes by engaging all 6 pawls simultaneously.
Labyrinth seal
One of the most important goals of Hope's designers was to reduce friction in the drive mechanism. They achieved this with the help of the new, resistance-free labyrinth seal on the drive side. This is a non-contact shaft seal. In addition, friction in the drive mechanism was reduced by using the improved pawl system and springs. By reducing the friction in the drive system, the load capacity and thus the durability of the rear wheel hub has also been improved. The bearings on the non-drive side have an external seal.
Note: This rear hub can only be used with a single speed kit that has a SRAM XD freewheel.
Technical data
Area of application: Downhill
Material hub: Aluminum 2014 T6
Freehub body material: Stainless steel
Installation width: 148 mm
Axle standard: 12 x 148 mm thru axle (Boost)
Number of holes: 32 hole
Brake rotor mount: 6-hole (IS2000)
Freehub compatibility: only compatible with Single Speed kits that have a SRAM XD freehub
Freehub type: 6 pawls, 54 clicks (offset design 108 clicks, maximum 3.33° free travel)
Bearing: Stainless steel industrial bearing
Spoke type: Standard spokes (J-bend)
Seal: Sliding seals
Spoke tension: n/a
Maximum system weight: n/a
Finish: anodized glossy
Color: silver with lasered logos
Weight according to manufacturer: n/a A.
Weight self-weighed: n/a A.
Scope of delivery: 1x HOPE rear hub Pro 5 DH | Classic 6-hole 12x148 mm Boost thru axle freehub SRAM XD | silver
